Chemistry 2nd Paper CQ-Sylhet Board-2022

Write down the structural formula of gammaxene.

Why phenol is called aromatic compound? Explain.

If we do ozonolysis and hydrolysis of compound ' $\mathrm{A}$ ' then the products are $\mathrm{H}-\mathrm{CHO}$ and $\mathrm{CH}_{3}-$ $\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{CHO}$. By mentioning chemical reaction, find out the name and also structure of compound 'A' logically.

Which compound shows acidic properties among the probable isomers of B? Analyze with equation.

What is called molarity?

Show that, $\mathrm{Sn}^{2+}$ acts as both oxidizing and reducing agent.

Find out the number of $\mathrm{Na}^{+}$ion in container (III) solution.

If we mix the solution of container I, II, and III respectively then determine the nature of mixture by mathematical analysis.

What is electro chemical equivalent?

What is meant by standard reduction potential $+0.34 \mathrm{~V}$ of $\mathrm{Cu}$ ?

How much coulomb charge is needed to completely accumulate Metalic-ion in container-1? Calculate it.

Is there any electricity flow if we construct a cell with container-1 and container-2? Analyze.

What is asymmetric carbon.

Why $\mathrm{CHCl}_{3}$ kept in colour bottle?

Write down the mechanism for the preparation of $\mathrm{C}$ from $\mathrm{B}$ compound in the stem.

For compound 'B' which reaction will be showed between Aldol and Cannizaro reaction? Analyze it.

What is salt bridge?

Why $\mathrm{SO}_{3}$ is called electrophilic reagent.

Write down the mechanism for the preparation of $\mathrm{C}$ from B compound in the stem.

From the stem, why compound $\mathrm{A}$ and $\mathrm{C}$ show different Isomerism? Analyze it.